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<p>Lax production supervision, equipment failure, and incorrect operation will cause quality problems in aluminum coils. The occurrence of quality problems affects the product quality of aluminum coil production plants and causes economic losses. Therefore, when quality problems occur, they should be resolved in time. So, what quality problems will <a href="https://www.canyimetal.net/product" rel="noopener noreferrer" target="_blank">aluminum coil </a>encounter after production.</p><p><br></p><p>1. Gas strip and slag inclusion</p><p><br></p><p>Possible reasons in casting and rolling: production process is not strictly implemented (refining is not in place), degassing outside the furnace is not in place (except for air box leakage), aluminum water treatment is not in place, filtering effect is not obvious (the filter box cannot be used normally ), the air is too humid.</p><p><br></p><p>Corrective measures: carry out one-time feeding, spread the covering agent according to the operation process, strengthen refining, solve the problem of air leakage in the degassing tank, clean the aluminum water, and add a filter device to ensure that the aluminum water is filtered.</p><p><br></p><p>Two, long strip of small gap</p><p><br></p><p>Possible causes on casting and rolling: damage or damage to the nozzle skin</p><p><br></p><p>Corrective measures: If there are the above problems, the skin of the mouth should be broken immediately to ensure that the skin of the mouth is in good condition during production.</p><p><br></p><p>Three, black bars</p><p><br></p><p>Possible problems in casting and rolling: the process is not implemented in place and the aluminum water treatment is not good.</p><p><br></p><p>Corrective measures: formulate production technology and strengthen aluminum water treatment.</p><p><br></p><p>Four, scratches</p><p><br></p><p>Possible reasons for casting and rolling: the surface of the aluminum plate is rubbed by the lower table of the shearing machine.</p><p><br></p><p>Rectification measures: Rectify the lower table of the shearing machine.</p>
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